Check Red"s Tavern which is in sight of the stadium. The run a shuttle continuously round trip for $5.
Simplest is by paying $40 when you arrive. You can also park away from the stadium and take the train in but not sure if that would be more or less than $40
I don't think you can get parking passes in advance the fee for parking is $40 dollars.
Like homie said check the website
You can check their website for rates.
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